English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We study the formation of molecular hydrogen in cooling gas behind shocksproduced during the blow-away process thought to occur in the first collapsed,luminous (Pop III) objects in the early universe. We find that for a wide rangeof physical parameters the $H_2$ fraction is $f \approx 6 \times 10^{-3}$. The$H_2$ mass produced in such explosions can exceed the amount of relic $H_2$destroyed inside the photodissociation region surrounding a given Pop III. Weconclude that these first objects, differently from the suggestion of Haiman etal 1997, might have a net positive feedback on subsequent galactic formation.We discuss the effects of radiation and the implications of our results for thesoft-UV background.Comment: 16 pages, aasms4.sty, LaTeX, 2 figures. submitted to ApJ Letter

The Positive Feedback of Population III Objects on Galaxy Formation